Работа с Date()

(function($) {
$.formatDate = function(date,pattern){
    var result = [];
    while(pattern.length > 0) {
        $.formatDate.patternParts.lastIndex = 0;
        var matched = $.formatDate.patternParts.exec(pattern);
        if (matched) {
            result.push($.formatDate.patternValue[matched[0]].call(this,date));
            pattern = pattern.slice(mathed[0].length);
        } else {
            result.push(pattern.charAt(0));
            pattern = pattern.slice(1);
        }
    }
    return result.join(''); 
};
$.formatDate.patternParts = /^(yy(yy)?|M(M(M(M)?)?)?|d(d)?|EEE(E)?|a|H(H)?|h(h)?|m(m)?|s(s)?|S)/;
$.formatDate.monthNames = ['January','February','March','April','May','June','July','August','September','October','November','December'];
$.formatDate.dayNames = ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'];
$.formatDate.patternValue = {
    yy:     function(date) { return $.toFixedWidth(date.getFullYear(), 2);},
    yyyy: function(date) { return date.getFullYear().toString();},
    MMMM: function(date) { return $.formatDate.monthNames[date.getMonth()];},
    MMM:    function(date) { return $.formatDate.monthnames[date.getMonth()].substr(0,3);},
    MM: function(date) { return $.toFixedWidth(date.getMonth()+1, 2);},
    M:      function(date) { return date.getMonth()+1;},
    dd: function(date) { return $.toFixedWidth(date.getDate(), 2);},
    d:      function(date) { return date.getDate();},
    EEEE:   function(date) { return $.formatDate.dayNames[date.getDay()];},
    EEE:    function(date) { return $.formatDate.dayNames[date.getDay()].substr(0,3);},
    HH: function(date) { return $.toFixedWidth(date.getHours(), 2);},
    H:      function(date) { return date.getHours();},
    hh: function(date) {
        var hours = date.getHours();
        return $.toFixedWidth(hours>12 ? hours-12 : hours, 2);
    },
    h:      function(date) { return date.getHours() % 12;},
    mm: function(date) { return $.toFixedWidth(date.getMinutes(), 2);},
    m:      function(date) { return date.getMinutes();},
    ss: function(date) { return $.toFixedWidth(date.getSeconds(), 2);},
    s:      function(date) { return date.getSeconds();},
    S:      function(date) { return $.toFixedWidth(date.getMilliseconds(),3);},
    a:      function(date) { return date.getHours() < 12 ? 'AM' : 'PM';}
};
$.toFixedWidth = function(value,length,fill) {
    var result = value.toString();
    if (!fill) fill = '0';
    var padding = length - result.length;
    if(padding < 0) {
        result = result.substr(-padding);
    } else {
        for (var n = 0; n < padding; n++) { result = fill+result;}
    }
    return result;
};
})(jQuery);